Oil burner



Patented July 15, 1924..

UNITED STATES` PA TEN T,OFFICE. y

Encan n. wmen'r, or GLnNBocx, wYomNG. y

on. nomma.

Application med September 17, 1923. Serial No. 668,241.

Toallwlwmz'tma concer/n:

Be it known t at I, EDGAR R. WRIGHT, a citizen of the United States, residing at Glenrock, in the county of Converse and State of Wyoming, have invented certain new and useful Improvements in Oil Burners, of which the following is a specication.

This invention relates to oil burners, and particularly to that type of burner wherein an admixture of oil and air or steam is utilized. A

An object of the present invention is to provide a burner which is adjustable at the nozzle andi which does not require the reduction in pressure in the burner for controlling the outlet of the fluids passing throughthe burner.

Another object of the invention is to provide a burner casing constructed to receive oil and steam, and which has an oil passage so disposed within the steam passage. as to preheat the oil from the steam as the latter passes through the burner.

A further object of the invention is to provide a burner which will., thoroughly admix the compressed air or steam with the oil and will thoroughly break `up and atomize the oil as it passes from the end of the burner to thus produce a hotter flame and to conserve the fuel Vin its consumption.

The invention still further aims at the provision of a burner which is capable of use with various grades of oil and which may be quickly and easily adjusted for taking care of a heavy oil or a light oil, the adJustment being a relatively simple one and requiring but little if any skill onthe part of the operator.

The above. and various other objects and advantages of this invention will be in part described in and part understood from the following detailed description of the present preferred embodiment, the same beingillustrated in the accompanying drawing where- 1n:

Fig. 1 is a vertical central section taken through an oil burner constructed accordin to the present invention.

ig. 2 is a top plan view thereof. Fig. 3 is a detail side elevation of the sleeve valve for adjusting the spray in the' burner, and

Fig. 4 is a transverse section through the burner casing substantially on the line 4-4 of Fig. 1.

Referring to the drawing 10 desi y ates a burner Vcasing in the form of 'a tu e externally. screw threaded for the reception, on its upper end, of a cap 11 which is provided with a burner slot 12 of suitable form within the tube 10 and is of considerably less diameter to provide, between the tubes 10 and 17,*an annular passage between the p1 es.

ll'he lower end of the tube 17 is threaded inan elbow 18 which islocated centrally within the casing 13 and which is threaded upon one end of a spud 19, which latter is threaded through a plug 20 mounted in another side of the casing 13. `Another elbow 21 is threaded into the outer end of the spud 19 for connection with an oil supply pipe 22. The Spud 19 is provided with a jamb nut 23 which is on its outer end and arranged to bind against the outer side of the plug 20 for holding the tube 17 in an u right central position in the casing of t e burner.

A plug24 is threaded in the upper end of the tube 17 and the tube is provided at suitable points -with spray openings 25 through which oil passing up through the tube 17 may escape. The oil issuing from the openings 25 is delivered directly into the draft of air or steam which is flowing upwardly through the outer tube 10, and such flow of oil is regulated b a sleeve valve 26 which is mounted to sli e about the upper end of the tube 17. The tubular valve 26 has openings 27 therein adapted to register more or less with the openings 25. The sleeve valve 26 is supported upon the tubev 17 b a rod 28 which is secured at its upper endy to one side of the valve 26 and which extends downwardly toa point beneath the elbow 18 where the rod 28 is oi'set inwardly at 29 to dispose the lower end of thel rod coaxiall with the tubes 10 and 17 and with a stu ng box 30 in the bottom of the casing 13 through which the rod 28 extends. The casin 13 is provided with a frame 31 which depends about the stuiiing box 30 and which is provided with a pair of spaced apart. bars 32 between which .operates a thumb'nut 33 threaded upon the lower end of the rod 28. The rod 28 is threaded' for a considerable distance so as to adjust the rod vertically through the thumb nut 38. The `thumb nut is held between the bars 32 and supported upon the lower bar when the weight ofthe sleeve v26 is taken up by the rod 28. Y

In operation,- px'essure through the pipe 14 Vinto the casing 13 and from there into the pipe 10, the steam issuin through the slot 12 and the capll and eating the inner pip\17 and its contents. Oil is admitted from the pipeY 22 into the central pipe 17 and is preheated before it reaches the nozzle openings 25.

The preheated oil passes out through the openings 25 and the thumb nut 23 is turned to adjust the sleeve valve '26 and register.

by the hot steam so that the oil passing into the casing is thoroughly heated and may thus be more easily vaporized. The thumb. button 32 may be quickly and easily adjusted so as to not only obtain'the maximum eliiciency in atomizing the` oil .and mixing it with steam, but also to quickly change the size of the nozzle openings for accommodating either a heavy grade of oil or a light grade of oil.

The above specifically described embodiment of this invention may be changed and modified to meet various requirements and designs in manufacture and installation without departing from'the spirit of this invention, the modifications and changes are restricted only by the scope of the following claims.

1. An oil burner comprising an elongated casing having a burner Vopening in one end and a steam inlet pipe in its other end, an oil pipe projecting into the casing and extending axially therein and being closed at its outer end and having laterally disposed openings therein for spraying the oil from the tube, a sleeve valve surrounding the tube and slidable longitudinally thereon and having similar openmgs adapted to register with steam is admitted underV the openings in the '.tube, and ladjusting means for the sleeve valve operable exteriorly of the casing for moving the sleeve longitudinally upon the tube and adjusting the Openings into and out of register with each other.

2. An' oil burner comprising a tube, -a steam pipe connected to one end for supplying steam to the tube, a second tube arranged in the first tube and adapted to receive oil to be heated by the steam, a cap closing the top'of the rst tube, a plug closing the u per end ofthe inner tube, said inner tu e having a plurality of openings in its side through which the oil is adapted to be sprayed into the steam, a cylinder Valve Inov-v ably mounted on the inner tube for movement longitudinally thereon and having openings therein adapted to register with the openings in the tube, a rod connected to the cylinder valve and extending downwardly through the lower end of said outer tube, and a manually operable device connected to said rod for operating thesame to shift the. cylinder valve longitudinally upon the inner tube and change the -relation between the openings of the inner tube and the cylinder valve.

3. An oil burner comprising a casing, a tube connected at one end to the casing, a steam` pipe connected to the casing for supplying steam thereto and to said tube, a cap closing the other -end of thetube and having a slot therein through whichsaid steam may issue, a second tube arranged within the first and connected through the casing with asource of oil supply, a plugv closin the outer end of said inner tub'e and the inner tube having a group of lateral openings in its outer end portion through which oil is adapted to spray into the steam, a erforated sleeve surrounding said aperture portion of the -inner tube and slidable longitudinally thereon, a rod connected to said sleeve and extending downwardly through the casing, a stuffing box carried by the casing and surrounding. said rod forpacking the same, said rod being threaded uponits lower end exteriorly of the casing, a thumb nut threaded on the rod, and abutment means mounted on the casing and engaging opposite sides of the nut Yfor anchoring the same wherelg7 turning of the nut is adapted to move sai rod and sleeve longitudinally and change the relative positions of thel openings in the inner tube and the sleeve.

EDGAR R. WRIGHT; 

